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Turf Agrifax - Week 23, 2000 (September 1, 2000) |
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Welcome to the "Turf Hotline" sponsored by the Ministry of Agriculture, Food and Rural Affairs for the week of Sept.1- 8, 2000.
The last weekend of the summer is here and the weather forecast is for nice weather. The hot, hazy weather is supposed to come to an end by the end of today and it will be followed by temperatures in the mid twenties again with the nights cooling to the mid teens. This has been the weather pattern that we have had for the better part of four weeks now, with the occasional rise in temperature for a couple of days.
Lots of necrotic ring spot or take-all patch again this week with more dry conditions. There was a flare up of dollar spot over the last couple of days with the return of the hot weather. I have not had any confirmed reports of Pythium Blight, brown patch or anthracnose over the last couple of days, but the conditions were favourable for those three diseases. At this time of year it is safe to say that we will probably not see those diseases again this year. Rust is still active on Kentucky bluegrass and perennial ryegrass.
On the insect front, the European chafer grubs continue to develop. They are in second instar now. Japanese beetle grubs are developing quickly now. The other insect to look out for over the next couple of weeks is the sod webworm. When damage from this caterpillar does occur, it is usually toward the end of August to mid-September.
There is still time to apply the first of the fall fertilizer treatments. This first treatment will help the turf recover from any summer damage and green it up. The second fall fertilization application can go on in late October - early November.
Now is still a great time to seed new lawns or to seed damaged turf areas. Soil temperatures are still warm enough to get good seed germination at this time. It is also an excellent time for core aeration.
This has been Pam Charbonneau. The next hotline message will be recorded on Fri. Sept. 8, 2000. |
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Turf Agrifax - Week 22, 2000 (August 25, 2000) |
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Welcome to the "Turf Hotline" sponsored by the Ministry of Agriculture, Food and Rural Affairs for the week of Aug. 25- Sept.1, 2000.
We have had warm days and cool nights for the most part this week and the forecast is for more of the same. The daytime temperatures are creeping up a bit but the nighttime temperatures are staying cool in the mid teens. Lots of sunshine in the forecast for the next few days anyway.
Dollar spot activity has really fallen off last week with the drier weather on golf course turf and home lawns. Calls about rust are still coming in. To help control this disease, mow regularly and fertilize. Rust has been very severe this year giving many stands of perennial ryegrass and Kentucky bluegrass that orange/yellow tinge from afar. Lots of necrotic ring spot or take-all patch again this week with the slightly drier conditions. In spite of the drier conditions, anthracnose basal rot is still a problem.
Hairy chinch bug adults are still being found in the turf. In the next couple of weeks they should be returning to flower beds for the winter. Chinch bug damage occurred a little later than last year with some areas being hit fairly hard. The European chafer grubs are growing and some have reached early 2nd instar. They appear to be feeding just below the thatch now in most areas. Now is a good time for curative control if necessary. The insecticide choices at this time of year are chlorpyrifos, diazinon and carbaryl. The non-insecticide choice are the parasitic nematodes. Make sure to water the insecticides in as soon as possible after the treatments. The same holds true for nematode treatments. Japanese beetles are still flying. Postpone curative treatments for Japanese beetles until the adults have stopped flying for two weeks.
As far as fertilizing turf in concerned, anytime now you can apply the first of the fall fertilizer treatments. This first treatment will help the turf recover from any summer damage and green it up. With all the rain, the fertilizer that was applied earlier in the season has run out of steam. The second fall fertilization application can go on in late October - early November.
Now is a great time to seed new lawns or to seed damaged turf areas. Soil temperatures are still warm enough to get good seed germination at this time. It is also an excellent time for core aeration.
This has been Pam Charbonneau. The next hotline message will be recorded on Fri. Sept. 1, 2000. |
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